Mazda Grand Familia/818 (EU)

Differential fluid capacity & service interval

Mazda Grand Familia/818 (EU) differential fluid capacity ranges from 1 to 1,4 liters. Service intervals include checks at 10000 km or 6 months, and changes at 1000 km or 20000 km or 12 months. The data covers 4 configurations.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
  • Grand Familia 818 1300, STC (1973-1978)
  • Rear
  • Use: Normal
  • Capacity 1 liter
  • Check 10000 km/ 6 months
  • Change 20000 km/ 12 months
  • Grand Familia 818 1300, STC (1973-1978)
  • Rear
  • Use: Initial service
  • Capacity 1 liter
  • Change 1000 km
  • Grand Familia 818 1600, SN4 (1973-1978)
  • Rear
  • Use: Normal
  • Capacity 1,4 liter
  • Check 10000 km/ 6 months
  • Change 20000 km/ 12 months
  • Grand Familia 818 1600, SN4 (1973-1978)
  • Rear
  • Use: Initial service
  • Capacity 1,4 liter
  • Change 1000 km

Additional Notes

  • The rear differential fluid capacity for the Grand Familia 818 1300 (STC engine) is 1 liter, while the 1600 (SN4 engine) requires 1.4 liters, reflecting the larger differential housing associated with the bigger displacement variant.
  • Both engine variants share identical normal-use service intervals: a fluid check every 10,000 km or 6 months, and a full fluid change every 20,000 km or 12 months, whichever comes first.
  • An initial service change interval of 1,000 km is specified for both the 1300 STC and 1600 SN4 variants. At this early mileage, the differential fluid is changed to remove metal particles and debris generated during the break-in period of new gear surfaces.
  • The 1,000 km initial service change applies to both variants at their respective capacities, meaning the 1300 STC requires 1 liter and the 1600 SN4 requires 1.4 liters at that first early drain.
  • The dual-trigger interval structure, combining a distance figure with a time-based figure, means whichever threshold is reached first governs when the check or change is due, a common approach for vehicles that may see low annual mileage.

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